Optimized energy-efficient drive system for ship propulsion

2011 ◽  
Author(s):  
Carsten Heising ◽  
Volker Staudt ◽  
Andreas Steimel
Keyword(s):  
Energy Efficient ◽  
Drive System ◽  
Ship Propulsion

An Energy Efficient Brushless Drive System for a Domestic Washing Machine

1995 ◽  
pp. 65-68
Author(s):  
K. Harmer ◽  
D. Howe ◽  
P. H. Mellor ◽  
C. D. Riley ◽  
J. K. Mitchell
Keyword(s):  
Energy Efficient ◽  
Drive System ◽  
Washing Machine

scholarly journals Integrated Sensing and Earthmoving Vehicle for Lunar Landing Pad Construction

2019 ◽  
Author(s):  
Volker Nannen ◽  
Damian Bover ◽  
Dieter Zöbel
Keyword(s):  
Energy Efficient ◽  
Weight Ratio ◽  
Penetration Resistance ◽  
Drive System ◽  
Efficient Manner ◽  
Efficient Operation ◽  
Lunar Landing ◽  
Steep Terrain ◽  
Mediterranean Soil

Reducing the forces necessary to construct projects like landing pads and blast walls is possibly one of the major drivers in reducing the costs of establishing lunar settlements. The interlock drive system generates traction by penetrating articulated spikes into the ground and by using the natural strength of the ground for traction. The spikes develop a high pull to weight ratio and promise good mobility in soft, rocky and steep terrain, energy-efficient operation, and their design is relatively simple. By penetrating the ground at regular intervals, the spikes also enable the in-situ measurement of a variety of ground properties, including penetration resistance, temperature, and pH. Here we present a concept for a light lunar bulldozer with interlocking spikes that uses a blade and a ripper to loosen and move soil over short distances, that maps ground properties in situ and that uses this information to construct landing pads and blast walls, and to otherwise interact with the ground in a targeted and efficient manner. Trials on Mediterranean soil have shown that this concept promises to satisfy many of the basic requirements expected of a lunar excavator. To better predict performance in a lunar or Martian environment, experiments on relevant soil simulants are needed.

DC-DC Converter for Energy Efficient DC Drive System

2021 ◽  
pp. 513-528
Author(s):  
Y. Jeyashree ◽  
Y. Sukhi ◽  
A. Sahaya Ponrekha
Keyword(s):  
Energy Efficient ◽  
Drive System ◽  
Dc Drive
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